Home / 73,016.22-109,542.87-20,425.98

Finding the Fourth Proportional to 73,016.22, 109,542.87 and 20,425.98

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Solution

The fourth proportional to 73,016.22, 109,542.87 and 20,425.98 is: 30,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,016.22 : 109,542.87 = 20,425.98 : x
  2. Step 2: Convert to fraction form
    73,016.22/109,542.87 = 20,425.98/x
  3. Step 3: Cross multiply
    73,016.22x = 109,542.87 × 20,425.98
  4. Step 4: Simplify right side
    73,016.22x = 2,237,520,471.76
  5. Step 5: Solve for x
    x = 2,237,520,471.76/73,016.22
  6. Step 6: Final answer
    x = 30,644.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.